| year | team name | league | level | mlb | # | age | w | l | era | g | gs | cg | sho | gr | gf | sv | ip | h | r | er | hr | bb | so | wp | bk | hb | whip | h9 | hr9 | bb9 | so9 | ra9 | so/bb |
| 1981 | Maryland | ACC | NCAA-1 | 19 | 6 | 2 | 4.46 | 9 | 9 | 4 | 0 | 0 | 0 | 0 | 68.2 | 72 | 49 | 34 | 0 | 21 | 49 | 0 | 0 | 0 | 1.35 | 9.44 | 0.00 | 2.75 | 6.42 | 6.42 | 2.33 | ||
| 1983 | Maryland | ACC | NCAA-1 | 21 | 5 | 3 | 4.11 | 10 | 8 | 6 | 1 | 2 | 0 | 0 | 61.1 | 66 | 42 | 28 | 0 | 16 | 51 | 0 | 0 | 0 | 1.34 | 9.68 | 0.00 | 2.35 | 7.48 | 6.16 | 3.19 | ||
| 1983 | Paintsville Brewers | App | Rk | MIL | - | 21 | 7 | 2 | 3.23 | 13 | 10 | 6 | 1 | 3 | 0 | 0 | 69.2 | 62 | 33 | 25 | 4 | 17 | 80 | 3 | 0 | 1 | 1.13 | 8.01 | 0.52 | 2.20 | 10.33 | 4.26 | 4.71 |
| 1984 | Beloit Brewers | Midw | A | MIL | - | 22 | 10 | 7 | 3.02 | 25 | 25 | 7 | 1 | 0 | 0 | 0 | 176.0 | 160 | 76 | 59 | 12 | 41 | 166 | 9 | 0 | 6 | 1.14 | 8.18 | 0.61 | 2.10 | 8.49 | 3.89 | 4.05 |
| 1985 | Stockton Ports | Calif | A+ | MIL | - | 23 | 10 | 6 | 3.69 | 18 | 18 | 4 | 1 | 0 | 0 | 0 | 129.1 | 116 | 59 | 53 | 5 | 39 | 119 | 4 | 0 | 0 | 1.20 | 8.07 | 0.35 | 2.71 | 8.28 | 4.11 | 3.05 |
| 1985 | El Paso Diablos | Tex | AA | MIL | - | 23 | 8 | 1 | 2.66 | 10 | 9 | 3 | 2 | 1 | 1 | 1 | 67.2 | 55 | 27 | 20 | 9 | 13 | 50 | 4 | 0 | 0 | 1.00 | 7.32 | 1.20 | 1.73 | 6.65 | 3.59 | 3.85 |
| 1986 | Vancouver Canadians | PCL | AAA | MIL | - | 24 | 9 | 8 | 4.06 | 26 | 25 | 7 | 2 | 1 | 1 | 1 | 168.1 | 194 | 80 | 76 | 14 | 35 | 106 | 7 | 0 | 0 | 1.36 | 10.37 | 0.75 | 1.87 | 5.67 | 4.28 | 3.03 |
| 1987 | Denver Zephyrs | Amer | AAA | MIL | - | 25 | 7 | 5 | 5.61 | 19 | 19 | 2 | 0 | 0 | 0 | 0 | 112.1 | 134 | 82 | 70 | 18 | 31 | 42 | 4 | 0 | 1 | 1.47 | 10.74 | 1.44 | 2.48 | 3.36 | 6.57 | 1.35 |
| 1987 | Milwaukee Brewers | AL | MLB | MIL | 34 | 25 | 1 | 1 | 9.37 | 4 | 3 | 0 | 0 | 1 | 0 | 0 | 16.1 | 26 | 17 | 17 | 5 | 9 | 8 | 3 | 0 | 0 | 2.14 | 14.33 | 2.76 | 4.96 | 4.41 | 9.37 | 0.89 |
| 1988 | Denver Zephyrs | Amer | AAA | MIL | - | 26 | 2 | 4 | 6.63 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 38.0 | 59 | 30 | 28 | 3 | 10 | 17 | 1 | 0 | 1 | 1.82 | 13.97 | 0.71 | 2.37 | 4.03 | 7.11 | 1.70 |
| Tot: | MLB (1 yrs) | MLB | 1 | 1 | 9.37 | 4 | 3 | 0 | 0 | 0 | 1 | 0 | 16.1 | 26 | 17 | 17 | 5 | 9 | 8 | 3 | 0 | 0 | 2.14 | 14.33 | 2.76 | 4.96 | 4.41 | 9.37 | 0.89 | ||||
| Tot: | AL (1 yrs) | AL | 1 | 1 | 9.37 | 4 | 3 | 0 | 0 | 0 | 1 | 0 | 16.1 | 26 | 17 | 17 | 5 | 9 | 8 | 3 | 0 | 0 | 2.14 | 14.33 | 2.76 | 4.96 | 4.41 | 9.37 | 0.89 | ||||
| Tot: | Minors (6 yrs) | Minors | 53 | 33 | 3.91 | 119 | 114 | 29 | 7 | 2 | 5 | 2 | 761.1 | 780 | 387 | 331 | 65 | 186 | 580 | 32 | 0 | 9 | 1.27 | 9.22 | 0.77 | 2.20 | 6.86 | 4.57 | 3.12 | ||||
| Tot: | Rk (1 yrs) | Rk | 7 | 2 | 3.23 | 13 | 10 | 6 | 1 | 0 | 3 | 0 | 69.2 | 62 | 33 | 25 | 4 | 17 | 80 | 3 | 0 | 1 | 1.13 | 8.01 | 0.52 | 2.20 | 10.33 | 4.26 | 4.71 | ||||
| Tot: | A (1 yrs) | A | 10 | 7 | 3.02 | 25 | 25 | 7 | 1 | 0 | 0 | 0 | 176.0 | 160 | 76 | 59 | 12 | 41 | 166 | 9 | 0 | 6 | 1.14 | 8.18 | 0.61 | 2.10 | 8.49 | 3.89 | 4.05 | ||||
| Tot: | A+ (1 yrs) | A+ | 10 | 6 | 3.69 | 18 | 18 | 4 | 1 | 0 | 0 | 0 | 129.1 | 116 | 59 | 53 | 5 | 39 | 119 | 4 | 0 | 0 | 1.20 | 8.07 | 0.35 | 2.71 | 8.28 | 4.11 | 3.05 | ||||
| Tot: | AA (1 yrs) | AA | 8 | 1 | 2.66 | 10 | 9 | 3 | 2 | 1 | 1 | 1 | 67.2 | 55 | 27 | 20 | 9 | 13 | 50 | 4 | 0 | 0 | 1.00 | 7.32 | 1.20 | 1.73 | 6.65 | 3.59 | 3.85 | ||||
| Tot: | AAA (3 yrs) | AAA | 18 | 17 | 4.91 | 53 | 52 | 9 | 2 | 1 | 1 | 1 | 318.2 | 387 | 192 | 174 | 35 | 76 | 165 | 12 | 0 | 2 | 1.45 | 10.93 | 0.99 | 2.15 | 4.66 | 5.42 | 2.17 | ||||
| Tot: | College (2 yrs) | College | 11 | 5 | 4.29 | 19 | 17 | 10 | 1 | 0 | 2 | 0 | 130.0 | 138 | 91 | 62 | 0 | 37 | 100 | 0 | 0 | 0 | 1.35 | 9.55 | 0.00 | 2.56 | 6.92 | 6.30 | 2.70 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | College - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 51 | 82 | 33 | 72 | 33 | 72 | .579 |